Improvement in paper-box machines



LP. BUC KINGH AM. PAPER-BOX MACHINES.

No. 194,289. Patented Aug. 2.1,18 7 7 UNITED STATES PATENT OFFICE.

JOSEPH P. BUOKINGHAM, OF OHIOOPEE, MASS., ASSIGNOR OF ONE-HALF HIS RIGHTTO GEORGE A. DENISODIAND OLIVER M. HAMILTON, OF

SAME PLACE.

IMPROVEMENT IN PAPER-BOX MACHINES.

Specification forming part of Letters Patent No. M13389, dated August31, 1 77; application file November,27, 1876.

To all whom it may concern Be it known that I, JosEPH P. BUOKING- HAM,of Ghicopee, iu the county of Hampden and State of Massachusetts, haveinvented certain new and useful Improvements in Machine for ScoringPaper-Box Blanks, of which the following is a specification My inventionhas for its object to make scorings by removing a portion of the stock,and thereby producing a scoring wider than the ordinary compressedscore, and one suita; ble for making boxes having the scorings upon theinside; and the invention consists of two ordinary rollers or rotarycutters, and mechanism for adjusting them to work together for producinga single score, in the manner hereinafter described.

In the accompanying drawings, Figure 1 is a front elevation, partly invertical section, of a machine for scoring blanks for paper boxes, whichembodies my invention. Fig. 2 is a side elevation of the same; and Fig.3 is a horizontal section of the same on line m a: of Fig. 1.

The mechanism herein described is designed to be attached to anyordinary machine for' cutting and scoring blanks for paper boxes. Any ofthe machines now in use may be employed, and it is deemed unnecessary todescribe them further than to say that, in order to be adapted for usewith my improvements, the machine should have a feed-roller, a revolvingcylinder, or other bed capable of being moved under the cutters, and across-bar, upon which the cutters can be secured and adjusted from sideto side.

In thedrawings, A designates a segment of this ordinary revolvingcylinder, and B the cross-bar. As in ordinary machines, single cuttersworking against the periphery of the cylinder B may be employed to cutthe paper through at desired points, and sever it into blanks of theproper size.

In the ordinary machine the scoring-cutters are the same as the others.and set the same, only not so near the cylinder.

I employ two of these rotary cutters, O 0, set angular in V form, withtheir peripheries meeting or adjacent to each other, as shown in Fig. 1,and at a distance from the cylinder equal to the thickness designed toleave the stock at the bottom of the score.

For each pair of cutters G 0 two frames, D I), are placed upon thecross-bar B, and coupled together by means of the adjusting-screw a,provided with set-nut 12, whereby the frames D D may be adjusted andheld at a greater or less distance from each other. The pair of framesand cutters, when adjusted in relation to each other by meanshereinafter described, may be set at any desired point on the crossbarB, and held in their position by means of the set-screws c 0.

At the rear of the frames D D are two vertical shafts, E E, passingthrough clampingsockets F F, provided with screws 01 d. The upper endsof said shafts E E are reduced and threaded, and pass through lugs e 0.By loosening the screws d cl the shafts may be twisted or turned withinthe clamping-sockets, and also raised or lowered to any desired point.Set-nuts upon the reduced and threaded portion of the shafts E E, at theupper and lower sides of the lugs, together with the screws 11 d andclamping-sockets, hold the shafts firmly in their position when set.

The lower ends of the shafts E E are provided with transverse sockets GG and setscrews f f, in which sockets are the cutterheads H H. Thesockets and screws enable the cutters U G to be set and held atdifi'erent angles to each other. As a means of further security theouter ends of the cutter-heads H H are coupled together by means of abolt and nut, g, passing through smaller heads h h screwed into the endsof the cutter-heads H H.

By the various adjustments above described the cutters can not only beraised and lowered, but spread apart, twisted, and turned in the severalsockets, so as to be set at almost every conceivable angle to adapt themto cutting different qualities of stock, and when so adjusted, rigidlysecured together, and set at the desired point on the cross-bar.

Paper is presented to the cutters by feeding it into the machine overthe bed or cylinder,

when each cutter cuts onesideof a V, the pair taking out aportion of thestock, and leaving a V-shaped scoring in the blank of such a characterthat it may be formed into an angle with the scoring on the inside,thereby leaving the outside corner smooth.

'Any number of pairs of cutters may be p ace o hecross-ba to make manysQ rings at one time as desired.

I claim as my invention 1. The pairof rotary cutters G 0, set in V form,with their peripheries adjacent to. each other at bottom of the V, andacting together to make a single score, substantially as described.

2. The combination of the cutters O 0, cut;

ter-heads H H, and sockets G G, having the a. The combination of cuttersO G, cutter heads H H, sockets G G, shafts 111E, clamping-sockets F F,frames D D, and adjustingscrew a, substantially as described, and for hpu p set for h- JOSEPH P. BUGKINGHAM.

tne ses= WM. T. SEAVER, S. D. M. ALLBE.

